298789 has 4 divisors (see below), whose sum is σ = 302956. Its totient is φ = 294624.

The previous prime is 298777. The next prime is 298799. The reversal of 298789 is 987892.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 146689 + 152100 = 383^2 + 390^2 .

It is a cyclic number.

It is not a de Polignac number, because 298789 - 2⁵ = 298757 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1974 + ... + 2119.

It is an arithmetic number, because the mean of its divisors is an integer number (75739).

2²⁹⁸⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

298789 is a deficient number, since it is larger than the sum of its proper divisors (4167).

298789 is an equidigital number, since it uses as much as digits as its factorization.

298789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4166.

The product of its digits is 72576, while the sum is 43.

The square root of 298789 is about 546.6159529322. The cubic root of 298789 is about 66.8530976110.

The spelling of 298789 in words is "two hundred ninety-eight thousand, seven hundred eighty-nine".